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Title: β Pictoris' inner disk in polarized light and new orbital parameters for β Pictoris b

Here, we present H-band observations of β Pic with the Gemini Planet Imager's (GPI's) polarimetry mode that reveal the debris disk between ~0farcs3 (6 AU) and ~1farcs7 (33 AU), while simultaneously detecting β Pic b. The polarized disk image was fit with a dust density model combined with a Henyey–Greenstein scattering phase function. The best-fit model indicates a disk inclined to the line of sight ($$\phi =85\buildrel{\circ}\over{.} {27}_{-0.19}^{+0.26}$$) with a position angle (PA) $${\theta }_{\mathrm{PA}}=30\buildrel{\circ}\over{.} {35}_{-0.28}^{+0.29}$$ (slightly offset from the main outer disk, $${\theta }_{\mathrm{PA}}\approx 29^\circ $$), that extends from an inner disk radius of $${23.6}_{-0.6}^{+0.9}\;\mathrm{AU}$$ to well outside GPI's field of view.
Authors:
 [1] ;  [2] ;  [3] ;  [2] ;  [2] ;  [2] ;  [3] ;  [1] ;  [4] ;  [5] ;  [6] ;  [7] ;  [3] ;  [2] ;  [1] ;  [8] ;  [2] ;  [9] ;  [10] ;  [11] more »;  [12] ;  [12] ;  [4] ;  [13] ;  [14] ;  [7] ;  [7] ;  [15] ;  [16] ;  [17] ;  [18] ;  [12] ;  [3] ;  [1] ;  [19] ;  [20] ;  [10] ;  [6] ;  [21] ;  [5] ;  [22] ;  [5] ;  [23] ;  [7] ;  [4] ;  [24] ;  [10] ;  [25] ;  [3] ;  [3] ;  [16] ;  [17] ;  [26] ;  [17] ;  [23] ;  [27] ;  [14] « less
  1. Univ. of Toronto, ON (Canada)
  2. Univ. of California, Berkeley, CA (United States)
  3. Space Telescope Science Institute, Baltimore, MD (United States)
  4. Stanford Univ., Stanford, CA (United States)
  5. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  6. Univ. of Arizona, Tucson, AZ (United States)
  7. Gemini Observatory, La Serena (Chile)
  8. Univ. of Georgia, Athens, GA (United States)
  9. Univ. of Victoria, BC (Canada); National Research Council of Canada Herzberg, Victoria, BC (Canada)
  10. National Research Council of Canada Herzberg, Victoria, BC (Canada)
  11. Univ. of California, Berkeley, CA (United States); Univ. Grenoble Alpes/CNRS, IPAG, Grenoble (France)
  12. Univ. of California, Los Angeles, CA (United States)
  13. Gemini Observatory, Hilo, HI (United States)
  14. Johns Hopkins Univ., Baltimore, MD (United States)
  15. Univ. of Exeter, Exeter (United Kingdom)
  16. Large Synoptic Survey Telescope, Tucson, AZ (United States)
  17. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  18. Univ. of California San Diego, La Jolla, CA (United States)
  19. SETI Institute, Mountain View, CA (United States)
  20. NASA Ames Research Center, Mountain View, CA (United States)
  21. Stanford Univ., Stanford, CA (United States); SETI Institute, Mountain View, CA (United States)
  22. American Museum of Natural History, New York, NY (United States)
  23. Arizona State Univ., Tempe, AZ (United States)
  24. Univ. Space Research Assoc., NASA/Armstrong Flight Research Center, Palmdale, CA (United States)
  25. The Univ. of Toledo, Toledo, OH (United States)
  26. SETI Institute, Mountain View, CA (United States); California State Polytechnic Univ., Pomona, CA (United States)
  27. Univ. of California, Santa Cruz, CA (United States)
Publication Date:
OSTI Identifier:
1325885
Report Number(s):
LLNL-JRNL-678640
Journal ID: ISSN 1538-4357
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal (Online); Journal Volume: 811; Journal Issue: 1; Journal ID: ISSN 1538-4357
Publisher:
Institute of Physics (IOP)
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; astrometry; planet-disk interactions; planets and satellites: individual (β Pic b); techniques: polarimetric